Section of Moderator Lamp.

 


The moderator lamp, invented by Franchot about 1836, from the simplicity and efficiency of its arrangements rapidly superseded almost all other forms of mechanical lamp for use with animal and vegetable oils. The two essential features of the moderator lamp are (1) the strong spiral spring which, acting on a piston within the cylindrical reservoir of the lamp, serves to propel the oil to the burner, and (2) the ascending tube C through which the oil passes upwards to the burner. The latter consist of two sections, the lower fixed to and passing through the piston A into the oil reservoir, and the upper attached to the burner. The lower or piston section moves within the upper, which forms a sheath enclosing nearly its whole length when the spring is fully wound up. Down the centre of the upper tube passes a wire, “the moderator,” G, and it is by this wire that the supply of oil to the burner is regulated. The spring exerts its greatest force on the oil in the reservoir when it is fully wound up, and in proportion as it expands and descends its power decreases.

Random image

Download Photo

Tag Cloud

  • 1 photos are tagged with Artillery
  • 1 photos are tagged with Maps
  • 2 photos are tagged with Sight
  • 1 photos are tagged with Sound

Album Tree

Popular tags

  • 1 photos are tagged with Artillery
  • 1 photos are tagged with Maps
  • 2 photos are tagged with Sight
  • 1 photos are tagged with Sound